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This patch fixes a build error reported in the link. [0]
unix_connect.c: In function ‘unix_connect_test’:
unix_connect.c:115:55: error: expected identifier before ‘(’ token
#define offsetof(type, member) ((size_t)&((type *)0)->(member))
^
unix_connect.c:128:12: note: in expansion of macro ‘offsetof’
addrlen = offsetof(struct sockaddr_un, sun_path) + variant->len;
^~~~~~~~
We can fix this by removing () around member, but checkpatch will complain
about it, and the root cause of the build failure is that I followed the
warning and fixed this in the v2 -> v3 change of the blamed commit. [1]
CHECK: Macro argument 'member' may be better as '(member)' to avoid precedence issues
#33: FILE: tools/testing/selftests/net/af_unix/unix_connect.c:115:
+#define offsetof(type, member) ((size_t)&((type *)0)->member)
To avoid this warning, let's use offsetof() defined in stddef.h instead.
[0]: https://lore.kernel.org/linux-mm/202207182205.FrkMeDZT-lkp@intel.com/
[1]: https://lore.kernel.org/netdev/20220702154818.66761-1-kuniyu@amazon.com/
Fixes: e95ab1d85289 ("selftests: net: af_unix: Test connect() with different netns.")
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20220720005750.16600-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This patch add a test that checks connect()ivity between two sockets:
unnamed socket -> bound socket
* SOCK_STREAM or SOCK_DGRAM
* pathname or abstract
* same or different netns
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The commit 314001f0bf92 ("af_unix: Add OOB support") introduced OOB for
AF_UNIX, but it lacks some changes for POLLPRI. Let's add the missing
piece.
In the selftest, normal datagrams are sent followed by OOB data, so this
commit replaces `POLLIN | POLLPRI` with just `POLLPRI` in the first test
case.
Fixes: 314001f0bf92 ("af_unix: Add OOB support")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Makefile uses TEST_PROGS instead of TEST_GEN_PROGS to define
executables. TEST_PROGS is for shell scripts that need to be
installed and run by the common lib.mk framework. The common
framework doesn't touch TEST_PROGS when it does build and clean.
As a result "make kselftest-clean" and "make clean" fail to remove
executables. Run and install work because the common framework runs
and installs TEST_PROGS. Build works because the Makefile defines
"all" rule which is unnecessary if TEST_GEN_PROGS is used.
Use TEST_GEN_PROGS so the common framework can handle build/run/
install/clean properly.
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the args to fprintf(). Splitting the message ends up passing
incorrect arg for "sigurg %d" and an extra arg overall. The test
result message ends up incorrect.
test_unix_oob.c: In function ‘main’:
test_unix_oob.c:274:43: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘char *’ [-Wformat=]
274 | fprintf(stderr, "Test 3 failed, sigurg %d len %d OOB %c ",
| ~^
| |
| int
| %s
275 | "atmark %d\n", signal_recvd, len, oob, atmark);
| ~~~~~~~~~~~~~
| |
| char *
test_unix_oob.c:274:19: warning: too many arguments for format [-Wformat-extra-args]
274 | fprintf(stderr, "Test 3 failed, sigurg %d len %d OOB %c ",
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds OOB support for AF_UNIX sockets.
The semantics is same as TCP.
The last byte of a message with the OOB flag is
treated as the OOB byte. The byte is separated into
a skb and a pointer to the skb is stored in unix_sock.
The pointer is used to enforce OOB semantics.
Signed-off-by: Rao Shoaib <rao.shoaib@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
